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Weather & Climate

Bristol Bay Borough, Alaska, United States

Overview

Climate data and monthly weather averages for Bristol Bay Borough.

Key Metrics

Annual Avg
1.6°C
Summer Avg
12.8°C
Winter Avg
-8.5°C
Record High
30.7°C
Record Low
-40°C
Annual Precipitation
1014.5 mm
Avg Humidity
87%
Summer Humidity
79%
Winter Humidity
95%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan6.8°-10.3°-40°71.995%1370.1
Feb-6.6°-37.5°67.894%3071
Mar9.6°-7°-32.4°51.892%8360.3
Apr18.4°0.7°-22.5°61.585%11759.5
May25°-9.1°74.479%15161.2
Jun28.3°11.7°1.5°71.176%15646.2
Jul30.7°13.7°4.3°101.480%13553
Aug27°13.1°2.4°109.782%11155.7
Sep21.9°8.8°-3.8°123.685%7655.9
Oct14.2°2.3°-18.7°10690%4361.3
Nov9.1°-5.4°-30.4°88.895%1765.2
Dec5.8°-8.6°-35.9°86.595%881.5

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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